Lecture 5-Global Temperature Patterns(1)

Lecture 5-Global Temperature Patterns(1) - Global...

Info iconThis preview shows pages 1–13. Sign up to view the full content.

View Full Document Right Arrow Icon
Global Temperature Patterns (Ch. 3)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Remember…. We expend our net radiation through the three pathways…. Sensible heat transfer (air-surface/surface-air; conduction and convection) Latent heat (water phase changes) Ground heating and cooling Variation in this expenditure between these pathways produces the variety of environments that we experience in nature!
Background image of page 2
Ex. Desert environments How is energy expended (net radiation) to produce desert environments?
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Desert Amount of insolation received affected by: Very little water Few clouds Water traps longwave (LW) radiation from sun and ground = blocks sunlight, traps heat at night Dry desert air allows most of sun’s heat to reach the ground during day, and most of Earth’s heat to leave the ground at night (hot days, cold nights)
Background image of page 4
Desert High sensible heat production Hot ground Results in high temps and contributes to sparse vegetation! Can you think of other factors that allow desert formation?
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Ex. Agricultural meadow How is energy expended in an environment with vegetation? Usually moist conditions Moderate temperatures
Background image of page 6
Agricultural meadow High amounts of energy are expended in latent heat transfer Evaporation from plants Less energy is spent as sensible heat vs. desert Temps are moderated by moisture and balance between pathways of energy expended
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Temperature Different geographical factors operate in determining our different environments and temperature patterns across the Earth…. More on climate and vegetation later! First….temperature and controls of temperature on our planet!
Background image of page 8
Heat vs. Temperature Heat is a form of energy that flows from one system to another because they are at different temperatures…. Heat transfers from your skin to the water in a cold pool because of temperature differences…. KE leaves your body and flows to the water-you feel chilled because of this loss of heat.
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Temperature is a measure of average KE of molecules in matter… We feel effects of temp as sensible heat transfer from warmer objects to cooler ones Temperature and heat are related because changes in temperature are caused by the absorption or emission (gain or loss) of heat energy…
Background image of page 10
Temperature Concepts Air temperature has a strong influence on our lives! Variations in temp regimes affect cultures, decision making, and resources consumed ….
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
express temperature Fahrenheit Celsius Kelvin Temperature at which all molecular motion in matter completely stops is absolute zero…. Because we have different temp scales, this value differs from scale to scale. -459.4 F; -273 C, and
Background image of page 12
Image of page 13
This is the end of the preview. Sign up to access the rest of the document.

This document was uploaded on 11/04/2011 for the course GEO 2200 at FSU.

Page1 / 58

Lecture 5-Global Temperature Patterns(1) - Global...

This preview shows document pages 1 - 13. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online